/* Enhanced Stock Span Analyzer CSS with Multi-Layer Particles */

/* CSS Variables for Enhanced Design */
:root {
    /* Enhanced color scheme */
    --color-background: #0a0a0a;
    --color-surface: rgba(255, 255, 255, 0.05);
    --color-text: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-primary: #20c997;
    --color-primary-hover: #1ab394;
    --color-secondary: #0dcaf0;
    --color-accent: #fd7e14;

    /* Enhanced particle effects */
    --particle-color-1: #20c997;
    --particle-color-2: #0dcaf0;
    --particle-color-3: rgba(255, 255, 255, 0.6);

    /* Glass morphism */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);

    /* Animations */
    --animation-fast: 0.3s;
    --animation-normal: 0.6s;
    --animation-slow: 1.2s;

    /* Typography */
    --font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
}

/* Light theme adjustments */
[data-bs-theme="light"] {
    --color-background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --color-surface: rgba(255, 255, 255, 0.9);
    --color-text: #2d3748;
    --color-text-secondary: #4a5568;
    --particle-color-1: #0d6efd;
    --particle-color-2: #198754;
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.4);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background: var(--color-background);
    color: var(--color-text);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Multi-Layer Particle Background */
#particles-js, #particles-js-2, #particles-js-3 {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

#particles-js {
    z-index: -3;
    background: linear-gradient(45deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
}

#particles-js-2 {
    z-index: -2;
    background: transparent;
}

#particles-js-3 {
    z-index: -1;
    background: transparent;
}

[data-bs-theme="light"] #particles-js {
    background: linear-gradient(45deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

/* Enhanced CSS Particle Fallback */
.css-particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    animation: float 10s infinite linear;
}

.css-particle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--particle-color-1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 2s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) translateX(0px) rotate(0deg); }
    25% { transform: translateY(-20px) translateX(10px) rotate(90deg); }
    50% { transform: translateY(0px) translateX(-10px) rotate(180deg); }
    75% { transform: translateY(20px) translateX(5px) rotate(270deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.7; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

/* Enhanced Navigation */
.glass-nav {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    transition: all var(--animation-normal) ease;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--animation-fast) ease;
}

.navbar-brand:hover {
    transform: scale(1.05);
}

/* Enhanced Glass Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    transition: all var(--animation-normal) ease;
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.8s ease;
}

.glass-card:hover::before {
    left: 100%;
}

.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--color-primary);
}

/* Enhanced Text Gradient */
.text-gradient {
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary), var(--color-accent));
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Enhanced Buttons */
.btn {
    border-radius: 50px;
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.5px;
    transition: all var(--animation-normal) ease;
    position: relative;
    overflow: hidden;
    border: none;
    padding: 12px 30px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-success {
    background: linear-gradient(45deg, #198754, var(--color-primary));
    box-shadow: 0 4px 15px rgba(25, 135, 84, 0.4);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(25, 135, 84, 0.6);
}

.btn-outline-info {
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
    background: transparent;
}

.btn-outline-info:hover {
    background: var(--color-secondary);
    color: var(--color-text);
    transform: translateY(-3px);
}

/* Enhanced Form Controls */
.form-control {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    color: var(--color-text);
    backdrop-filter: blur(10px);
    transition: all var(--animation-normal) ease;
    padding: 15px 20px;
    font-size: 16px;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.25rem rgba(32, 201, 151, 0.25);
    transform: scale(1.02);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

[data-bs-theme="light"] .form-control {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(0, 0, 0, 0.2);
    color: var(--color-text);
}

[data-bs-theme="light"] .form-control::placeholder {
    color: rgba(0, 0, 0, 0.6);
}

/* Enhanced Icon Wrapper */
.icon-wrapper {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: all var(--animation-normal) ease;
    position: relative;
}

.icon-wrapper::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--color-secondary), var(--color-primary));
    opacity: 0;
    transition: opacity var(--animation-fast) ease;
}

.icon-wrapper:hover::before {
    opacity: 1;
}

.icon-wrapper:hover {
    transform: scale(1.1) rotate(360deg);
    box-shadow: 0 10px 30px rgba(32, 201, 151, 0.4);
}

/* Enhanced Theme Toggle */
#themeToggle {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--animation-normal) ease;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
}

#themeToggle:hover {
    transform: rotate(180deg) scale(1.1);
}

/* Enhanced Tables */
.table {
    background: transparent;
    color: var(--color-text);
    border-radius: 15px;
    overflow: hidden;
}

.table-hover tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: scale(1.02);
    transition: all var(--animation-fast) ease;
}

.table th {
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    border: none;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Enhanced Status Badges */
.status {
    padding: 8px 16px;
    border-radius: 25px;
    font-weight: var(--font-weight-medium);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.status--success {
    background: linear-gradient(45deg, #198754, var(--color-primary));
    color: white;
    box-shadow: 0 4px 15px rgba(25, 135, 84, 0.3);
}

.status--warning {
    background: linear-gradient(45deg, #ffc107, var(--color-accent));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
}

/* Enhanced Summary Stats */
.summary-stat {
    text-align: center;
    padding: 25px;
    border-radius: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    margin-bottom: 20px;
    transition: all var(--animation-normal) ease;
    position: relative;
    overflow: hidden;
}

.summary-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
}

.summary-stat:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Enhanced Chart Container */
.chart-container {
    position: relative;
    height: 400px;
    width: 100%;
    background: var(--glass-bg);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid var(--glass-border);
}

/* Enhanced Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-text-secondary);
    font-size: 24px;
    animation: bounce 2s infinite;
    cursor: pointer;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Enhanced Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--animation-normal) ease;
    backdrop-filter: blur(10px);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 80px;
    height: 80px;
    border: 6px solid rgba(255, 255, 255, 0.3);
    border-top: 6px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Enhanced Animations */
.fade-in {
    opacity: 0;
    animation: fadeIn var(--animation-normal) ease forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

.slide-up {
    transform: translateY(50px);
    opacity: 0;
    animation: slideUp var(--animation-normal) ease forwards;
}

@keyframes slideUp {
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.success-pulse {
    animation: successPulse 0.8s ease-in-out;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Enhanced Table Row Animations */
.table tbody tr {
    animation: tableRowSlide 0.6s ease-out forwards;
    opacity: 0;
    transform: translateX(-30px);
}

@keyframes tableRowSlide {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Staggered animations for table rows */
.table tbody tr:nth-child(1) { animation-delay: 0.1s; }
.table tbody tr:nth-child(2) { animation-delay: 0.2s; }
.table tbody tr:nth-child(3) { animation-delay: 0.3s; }
.table tbody tr:nth-child(4) { animation-delay: 0.4s; }
.table tbody tr:nth-child(5) { animation-delay: 0.5s; }
.table tbody tr:nth-child(6) { animation-delay: 0.6s; }
.table tbody tr:nth-child(7) { animation-delay: 0.7s; }
.table tbody tr:nth-child(8) { animation-delay: 0.8s; }

/* Enhanced Responsive Design */
@media (max-width: 768px) {
    .display-2 { font-size: 2.5rem; }
    .hero-stats { margin: 2rem 0; }
    .stat-item { padding: 20px; }
    .stat-item h3 { font-size: 1.8rem; }
    .glass-card { margin-bottom: 20px; }
    .chart-container { height: 300px; }
    .btn { padding: 10px 25px; }
}

@media (max-width: 576px) {
    .display-2 { font-size: 2rem; }
    .stat-value { font-size: 2rem; }
    .summary-stat { padding: 20px; }
    .icon-wrapper { width: 60px; height: 60px; }
}

/* Enhanced Footer */
footer {
    background: var(--glass-bg);
    border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    margin-top: 50px;
}

/* Enhanced Utility Classes */
.text-shadow { text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); }
.backdrop-blur { backdrop-filter: blur(15px); }
.border-glow { 
    border: 1px solid var(--glass-border); 
    box-shadow: 0 0 30px rgba(32, 201, 151, 0.2); 
}

/* Enhanced Custom Scrollbar */
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { 
    background: rgba(255, 255, 255, 0.1); 
    border-radius: 6px; 
}
::-webkit-scrollbar-thumb { 
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary)); 
    border-radius: 6px; 
}
::-webkit-scrollbar-thumb:hover { 
    background: linear-gradient(45deg, var(--color-secondary), var(--color-primary)); 
}